This video outlines how to design a low side, precision current sensing solution using a precision, high-speed current sense amplifier, the INA185 and a small size, high-accuracy open-drain comparator, the TLV4041R2. The video describes what makes this circuit a low side solution, and goes in detail as to what makes this solution so precise: a small input offset voltage for the INA185, and a stable low value 200mV reference for the TLV4041R2.